class ConfigSingleImportExportTest

class ConfigSingleImportExportTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'block',
        'config',
        'config_test',
        // Adding language module makes it possible to involve non-default
        // (language.xx) collections in import/export operations.
'language',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    protected function setUp() {
        parent::setUp();
        $this->drupalPlaceBlock('page_title_block');
    }
    
    /**
     * Tests importing a single configuration file.
     */
    public function testImport() {
        $storage = \Drupal::entityTypeManager()->getStorage('config_test');
        $uuid = \Drupal::service('uuid');
        $this->drupalLogin($this->drupalCreateUser([
            'import configuration',
        ]));
        // Attempt an import with invalid YAML.
        $edit = [
            'config_type' => 'action',
            'import' => '{{{',
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        // Assert the static portion of the error since different parsers could give different text in their error.
        $this->assertText('The import failed with the following message: ');
        $import = <<<EOD
label: First
weight: 0
style: ''
status: '1'
EOD;
        $edit = [
            'config_type' => 'config_test',
            'import' => $import,
        ];
        // Attempt an import with a missing ID.
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertText(t('Missing ID key "@id_key" for this @entity_type import.', [
            '@id_key' => 'id',
            '@entity_type' => 'Test configuration',
        ]));
        // Perform an import with no specified UUID and a unique ID.
        $this->assertNull($storage->load('first'));
        $edit['import'] = "id: first\n" . $edit['import'];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Are you sure you want to create a new %name @type?', [
            '%name' => 'first',
            '@type' => 'test configuration',
        ]));
        $this->drupalPostForm(NULL, [], t('Confirm'));
        $entity = $storage->load('first');
        $this->assertIdentical($entity->label(), 'First');
        $this->assertIdentical($entity->id(), 'first');
        $this->assertTrue($entity->status());
        $this->assertRaw(t('The configuration was imported successfully.'));
        // Attempt an import with an existing ID but missing UUID.
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertText(t('An entity with this machine name already exists but the import did not specify a UUID.'));
        // Attempt an import with a mismatched UUID and existing ID.
        $edit['import'] .= "\nuuid: " . $uuid->generate();
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertText(t('An entity with this machine name already exists but the UUID does not match.'));
        // Attempt an import with a custom ID.
        $edit['custom_entity_id'] = 'custom_id';
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Are you sure you want to create a new %name @type?', [
            '%name' => 'custom_id',
            '@type' => 'test configuration',
        ]));
        $this->drupalPostForm(NULL, [], t('Confirm'));
        $this->assertRaw(t('The configuration was imported successfully.'));
        // Perform an import with a unique ID and UUID.
        $import = <<<EOD
id: second
label: Second
weight: 0
style: ''
status: '0'
EOD;
        $edit = [
            'config_type' => 'config_test',
            'import' => $import,
        ];
        $second_uuid = $uuid->generate();
        $edit['import'] .= "\nuuid: " . $second_uuid;
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Are you sure you want to create a new %name @type?', [
            '%name' => 'second',
            '@type' => 'test configuration',
        ]));
        $this->drupalPostForm(NULL, [], t('Confirm'));
        $entity = $storage->load('second');
        $this->assertRaw(t('The configuration was imported successfully.'));
        $this->assertIdentical($entity->label(), 'Second');
        $this->assertIdentical($entity->id(), 'second');
        $this->assertFalse($entity->status());
        $this->assertIdentical($entity->uuid(), $second_uuid);
        // Perform an update.
        $import = <<<EOD
id: second
uuid: {<span class="php-variable">$second_uuid</span>}
label: 'Second updated'
weight: 0
style: ''
status: '0'
EOD;
        $edit = [
            'config_type' => 'config_test',
            'import' => $import,
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Are you sure you want to update the %name @type?', [
            '%name' => 'second',
            '@type' => 'test configuration',
        ]));
        $this->drupalPostForm(NULL, [], t('Confirm'));
        $entity = $storage->load('second');
        $this->assertRaw(t('The configuration was imported successfully.'));
        $this->assertIdentical($entity->label(), 'Second updated');
        // Try to perform an update which adds missing dependencies.
        $import = <<<EOD
id: second
uuid: {<span class="php-variable">$second_uuid</span>}
label: 'Second updated'
weight: 0
style: ''
status: '0'
dependencies:
  module:
    - does_not_exist
EOD;
        $edit = [
            'config_type' => 'config_test',
            'import' => $import,
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Configuration %name depends on the %owner module that will not be installed after import.', [
            '%name' => 'config_test.dynamic.second',
            '%owner' => 'does_not_exist',
        ]));
        // Try to preform an update which would create a PHP object if Yaml parsing
        // not securely set up.
        // Perform an update.
        $import = <<<EOD
id: second
uuid: {<span class="php-variable">$second_uuid</span>}
label: !php/object "O:36:\\"Drupal\\\\Core\\\\Test\\\\ObjectSerialization\\":0:{}"
weight: 0
style: ''
status: '0'
EOD;
        $edit = [
            'config_type' => 'config_test',
            'import' => $import,
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        if (extension_loaded('yaml')) {
            // If the yaml extension is loaded it will work but not create the PHP
            // object.
            $this->assertRaw(t('Are you sure you want to update the %name @type?', [
                '%name' => 'second',
                '@type' => 'test configuration',
            ]));
            $this->drupalPostForm(NULL, [], t('Confirm'));
            $entity = $storage->load('second');
            $this->assertRaw(t('The configuration was imported successfully.'));
            $this->assertIsString($entity->label());
            $this->assertStringContainsString('ObjectSerialization', $entity->label(), 'Label contains serialized object');
        }
        else {
            // If the Symfony parser is used there will be an error.
            $this->assertSession()
                ->responseContains('The import failed with the following message:');
            $this->assertSession()
                ->responseContains('Object support when parsing a YAML file has been disabled');
        }
    }
    
    /**
     * Tests importing a simple configuration file.
     */
    public function testImportSimpleConfiguration() {
        $this->drupalLogin($this->drupalCreateUser([
            'import configuration',
        ]));
        $config = $this->config('system.site')
            ->set('name', 'Test simple import');
        // Place branding block with site name into header region.
        $this->drupalPlaceBlock('system_branding_block', [
            'region' => 'header',
        ]);
        $edit = [
            'config_type' => 'system.simple',
            'config_name' => $config->getName(),
            'import' => Yaml::encode($config->get()),
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertRaw(t('Are you sure you want to update the %name @type?', [
            '%name' => $config->getName(),
            '@type' => 'simple configuration',
        ]));
        $this->drupalPostForm(NULL, [], t('Confirm'));
        $this->drupalGet('');
        $this->assertText('Test simple import');
        // Ensure that ConfigImporter validation is running when importing simple
        // configuration.
        $config_data = $this->config('core.extension')
            ->get();
        // Simulate uninstalling the Config module.
        unset($config_data['module']['config']);
        $edit = [
            'config_type' => 'system.simple',
            'config_name' => 'core.extension',
            'import' => Yaml::encode($config_data),
        ];
        $this->drupalPostForm('admin/config/development/configuration/single/import', $edit, t('Import'));
        $this->assertText(t('Can not uninstall the Configuration module as part of a configuration synchronization through the user interface.'));
        // Try to import without any values.
        $this->drupalPostForm('admin/config/development/configuration/single/import', [], t('Import'));
        $this->assertText('Configuration type field is required.');
        $this->assertText('Paste your configuration here field is required.');
    }
    
    /**
     * Tests exporting a single configuration file.
     */
    public function testExport() {
        $this->drupalLogin($this->drupalCreateUser([
            'export configuration',
        ]));
        $this->drupalGet('admin/config/development/configuration/single/export/system.simple');
        $this->assertFieldByXPath('//select[@name="config_type"]//option[@selected="selected"]', t('Simple configuration'), 'The simple configuration option is selected when specified in the URL.');
        // Spot check several known simple configuration files.
        $element = $this->xpath('//select[@name="config_name"]')[0];
        $options = $element->findAll('css', 'option');
        $expected_options = [
            'system.site',
            'user.settings',
        ];
        foreach ($options as &$option) {
            $option = $option->getValue();
        }
        $this->assertIdentical($expected_options, array_intersect($expected_options, $options), 'The expected configuration files are listed.');
        $this->drupalGet('admin/config/development/configuration/single/export/system.simple/system.image');
        $this->assertEquals("toolkit: gd\n_core:\n  default_config_hash: durWHaKeBaq4d9Wpi4RqwADj1OufDepcnJuhVLmKN24\n", $this->xpath('//textarea[@name="export"]')[0]
            ->getValue(), 'The expected system configuration is displayed.');
        $this->drupalGet('admin/config/development/configuration/single/export/date_format');
        $this->assertFieldByXPath('//select[@name="config_type"]//option[@selected="selected"]', t('Date format'), 'The date format entity type is selected when specified in the URL.');
        $this->drupalGet('admin/config/development/configuration/single/export/date_format/fallback');
        $this->assertFieldByXPath('//select[@name="config_name"]//option[@selected="selected"]', t('Fallback date format (fallback)'), 'The fallback date format config entity is selected when specified in the URL.');
        $fallback_date = \Drupal::entityTypeManager()->getStorage('date_format')
            ->load('fallback');
        $yaml_text = $this->xpath('//textarea[@name="export"]')[0]
            ->getValue();
        $this->assertEquals(Yaml::decode($yaml_text), $fallback_date->toArray(), 'The fallback date format config entity export code is displayed.');
    }

}